diff --git a/lrzip.c b/lrzip.c
index 6dda1cb..68b57d5 100644
--- a/lrzip.c
+++ b/lrzip.c
@@ -520,7 +520,9 @@ void decompress_file(rzip_control *control)
 	print_progress("\r");
 	if (!(STDOUT | TEST_ONLY))
 		print_output("Output filename is: %s: ", control->outfile);
-        print_progress("[OK] - %lld bytes                                \n", expected_size);
+	if (!expected_size)
+		expected_size = control->st_size;
+	print_progress("[OK] - %lld bytes                                \n", expected_size);
 
 	if (unlikely(close(fd_hist) || close(fd_out)))
 		fatal("Failed to close files\n");
diff --git a/stream.c b/stream.c
index 723f947..1eda96a 100644
--- a/stream.c
+++ b/stream.c
@@ -988,6 +988,7 @@ void *open_stream_in(rzip_control *control, int f, int n)
 			goto failed;
 		}
 		print_maxverbose("Chunk size: %lld\n", sinfo->size);
+		control->st_size += sinfo->size;
 	}
 	sinfo->initial_pos = lseek(f, 0, SEEK_CUR);